| A | B |
|---|
| Aperture | The lens opening that allows more, or less light onto the sensor formed by a diaphragm inside the actual lens. |
| Aperture Priority | When using this mode, the user selects the aperture giving control over the Depth of Field. A large aperture letting more light in gives a small depth of field, meaning not much will be in focus. Whereas a small aperture, not letting much light in, will give a greater depth of field or more will be in focus from the front to back of the image. |
| Auto Focus | The lens on the camera focuses automatically when the shutter is half pressed. The viewfinder normally has focussing points shown to assist the user in knowing what will be in focus. |
| Depth of Field | The range of items in focus in an image. This is controlled by the focal length and aperture opening of a lens. |
| Digital Sensor | a device that converts an optical image into an electronic signal |
| DSLR/SLR | Digital Single Lens Reflex (SLR). Camera with interchangeable lens. |
| EXIF | Exchangeable Image File Format. The embedded information about camera and exposure for each image. Most decent graphics programs can read this information |
| Flash | a device used in photography producing a flash of artificial light (typically 1/1000 to 1/200 of a second) at a color temperature of about 5500 K to help illuminate a scene |
| Focal Length | A lens' angle of view. Such as Wide angle, standard or telephoto |
| Histogram | a bar graph analysis tool that is used to identify contrast and dynamic range of any image |
| Image Stabilization | An optical or digital system built in to a lens for removing or reducing camera movement, most effective with telephoto or telephoto zoom lenses. |
| JPEG FORMAT | Joint Photographic Experts Group, was designed for compressing full colour or grey scale digital images of natural scenes. |
| Landscape Mode | when you hold the camera in its normal, horizontal orientation to capture the image. The opposite is "portrait mode". |
| Lens | an optical lens or assembly of lenses used in conjunction with a camera body and mechanism to make images of objects either on photographic film or on other media capable of storing an image chemically or electronically. |
| Macro | extreme close-up photography, usually of very small subjects, in which the size of the subject in the photograph is greater than life size |
| M) Manual Mode | give the photographer control over the various parameters of an exposure. There are three exposure parameters – aperture, time (shutter speed), and sensitivity (ISO), and in different modes these are each set automatically |
| Megapixels | the CCD (or CMOS) resolution of one million pixels |
| Point and Shoot | Term used for a simple, easy to use camera with a minimum of user controls. The camera does everything automatically so you literally just point and shoot |
